Progress in Plasma Processing of Materials, 2001

ISBN Print: 1-56700-165-3

An Investigation of Plasma Expansion Jet Boundary Geometries

DOI: 10.1615/ITPPC-2000.410
pages 317-321

Abstract

Fluid dynamic results of an under-expanding argon plasma expanding from a cylinder symmetric arc, a high density source with small dimensions, into a low pressure vessel with large dimensions are presented.
The influence of different boundary jet geometries on the flow parameters and on recombination is examined by use of a plasma fluid model which can adapt the jet geometry. The fluid model is a radially integrated one-dimensional non-local thermal equilibrium model, which uses results from the gas dynamic theory of Prandtl - Meyer.